Home / 13,418.27-18,513.86-8,041.55

Finding the Fourth Proportional to 13,418.27, 18,513.86 and 8,041.55

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Solution

The fourth proportional to 13,418.27, 18,513.86 and 8,041.55 is: 11,095.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418.27 : 18,513.86 = 8,041.55 : x
  2. Step 2: Convert to fraction form
    13,418.27/18,513.86 = 8,041.55/x
  3. Step 3: Cross multiply
    13,418.27x = 18,513.86 × 8,041.55
  4. Step 4: Simplify right side
    13,418.27x = 148,880,197.27
  5. Step 5: Solve for x
    x = 148,880,197.27/13,418.27
  6. Step 6: Final answer
    x = 11,095.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.